Feed-valve for steam-boilers.



L. D. MAGER. FEED VALVE FOR STEAM BOILERS. APPLICATION FILED OUT. 12,1908.

Patented Dec. 28, 1909.

,3 11 M N T EO-n. MAGER, or eannn'r'r, INDIANA.

FEED-VALVE FOR STEAM-BOILERS.

Specification of Letters Patent.

Patented Dec. 28, 1909.

Application filed October 12, 1908. Serial No. 457,238.

To all whom it may concern:

Be it known that I, LEO D. MAGER a citizen of the United States,residing at Garrett, in the county of Deka-lb, in the State of Indiana,have invented certain new and useful Improvements in Feed-Valves forSteam- Boilers; and I do hereby declare that the following is a full,clear, and exact descrip tion of the invention, which will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, which form part ofthis specification. My invention relates to improvements in feed valvesfor steam boilers.

The object of my present invention is to provide a cheap, simple,efficient and convenient feed-valve in which the check valve can readilybe removed for cleaning or repairs without any interference or thenecessity of interfering with the cut-off valve, or

, wlth its connections with the steam boiler,

and1 also without waiting for the boiler'to coo My invention consists ofa valve casing which in use is mounted in a suitable lateral opening inthe boiler; a hollow cone-shaped cut-oft valve rotatably mounted .in theeasing in vertical arrangement, and provided in its hollow interior withan annular checkvalve seat; a check-valve loosely mounted in the hollowinterior of the cut-off valve and normally seated on the said annularseat; and detachable means for limiting the upward movement of thecheck-valve under the impulse of the infiowing liquid.

The principal novel feature of my invention resides in the constructionby which the check-valve can readily and conveniently be removed forcleaning or repairs, and then replaced without disturbing the cut-offvalve or its connections with the boiler.

Another novel feature is the cooperative relation, or combination of thetry-cock with applicants special form of cut-01f valve.

Similar reference numerals indicate like parts throughout the severalviews of the drawings in which F igure 1 is a vertical central sectionof my invention showing its connection with the boiler, of which asectional fragment is shown. Fig. 2 is a similar view of a slightly modified form of the same, showing a diflerent arrangement of the means forsecuring the cut-off valve in position. 'Fig. 3 is a crosssectionof'Fig. 1 on the line mw, and Fig. 4 is a detail bottom plan of thescrew-cap shown in Fig. 2. Fig. 5 is a detail of that form of cut-offvalve shown in Fig. 1 and Fig. 6 is a detail of that form of cut-offvalve shown in Fig. 2.

The valve casing 1 of suitable metal and in vertical arrangement andfrusto-conical in contour, is open at'its upper end and may have itslower end closed with a screw cap or not as desired, and hasdiametrically opposite radial openings 2 and 3, the latter of whichopenings has an externally screwthreaded boss 4; which is secured in asuitableopening in the boiler shell 5. A proper try-cock 6 is mounted inthe outer end of the opening 2 by a screw-threaded connection, as shown.The casing 1 also has a lateral screwthreaded boss 7 into which one endof the feed pipe is secured when a horizontal feed is desired.

The open lower end of the casing 1 may be externally screw threaded andsurmounted by a screw-threaded cap 8, as shown in Fig. 1, having aconcentric screw-threaded opening 9 in which one end of the water feedis secured when a vertical feed is desired in which case the opening 10in the boss 7 is properly closed. Instead of employing the cap 8 thebottom of the casing 1 may be provided with a concentric screw-threadedopening 11 in which the adjacent end of the feed pipe is secured in awell understood manner.

In the casing 1 is rotatiiely mounted a conical cut-ofl' .valve 12having a central 1ongitudinal opening 13 the upper end of which ismaterially enlarged in cross-section. The lower end of this enlargedportion of the central opening 13 has a properly beveled annular valveseat 14. for the check valve 15 threaded, and is closed by the removable100" screw-plug 17 which may have an integral cap 18, Fig. 1 if desiredfor the purpose hereafter described.

The valve 12 has a lateral opening 19 adapted to register with theopening 3 of the valve casing when the valve is open. This opening 19 isarranged above the checkvalve as shown. The valve 12 also has a lateralopening 10' adapted to register with the opening 10 in the casing 1 whenthe valve 12 is open.

As shown in Fig. 1, the valve casing has the inner face of its lower endprovided with an annular recess as shown at 20, and the lower end of thevalve 12 is reduced in cross section and externally screwthreaded asshown at 21. On this reduced portion 21 is loosely mounted a steam-tightpacking ring 22, and a metal washer 23 adjacent to the said ring, andnut 24 which firmly secures the packing ring in'position. As the washer23 engages the upper end of the recess 20 it is evident that verticaldisplacement of the valve 12 under the pressure of the infiowin water isimpossible in use. The inner face 0 the upper end of the valve ca 5- inghas an annular recess at 25. The upper end of the valve '12 is slightlyreduced in cross-section, and has a felt ring 26 thereon which alsosnugly fills the recess 25 and is kept saturated with oil, whereby itforms an automatic lubricating device for the valve 12. On this reducedupper end of the valve 12, which has angular sides, Fig. 5, is looselymounted a proper detachable operating handle 27, which is secured inposition thereon by the cap 18 of the screw plug 17. This handle 27 maybe either fixed or integral if desired. 1

In Fig. 2 is shown a different arrangement of the means for securing thevalve 12 against longitudinal displacement as follows: The outer face ofthe upper end of the valve casin 1 has a screw-threaded portion 28 towhic 1 is secured the screw-cap 29 by the engagement of its pendentinternally screw-threaded flange 30 therewith. A metal washer 31 engagesthe shoulder 82 of the valve 12 and the oiling ring 26, and is held inposition by means of the cap 29. In this modified form of the valve 12the reduced portion of its upper end has a cylindrical portion 33, Fig.6, to receive the washer 31 and the cap 29, and a terminal angularportion 34 to loosely receive the operating handle 27. The cap 29 has anannular recess 85 adapted to receive the upperend of the valve casingwhen it is necessary to tighten up the cap 29 to compensate for wear onthe valve 12.

The operation of my invention thus described is obvious and brieflystated is as follows: Assuming for example, that the horizontal feed ispreferred the operator closes the vertical opening 9 in the cap 8 if heuses the form shown in Fig. 1, or he closes the opening 11 if he usesthe form shown in Fig. 2, and then connects his feed pipe to the lateralopening 10. He then opens the cut-ofi valve by rotating the same,

by means of the handle 27, until the inlet opening 10 registers with theopening 10, and the opening 19 registers with the opening 3. Thefunction and operation of the try valve 6 is too well understood torequire any description as by opening the same the operator can seewhether or not the valve 12 is leaking and needs regrinding or otherattention. It is obvious that when it is desired to remove thecheck-valve 15 for cleaning, regrinding or repairs, the operator canreadily do so by simply closing the cut-off valve 12 by rotating thesame, and then unscrewing the plug 17, after which the checkvalve canconveniently be lifted from its seat and removed, and that all this canbe done without disturbing the connections of the cut-off valve with theboiler, and without Waiting for the steam to go down or the boiler tocool which is a material saving of both time and labor. Of course,either the lateral openings 10 and 10 or the vertical openings 9 and 11can be entirely omitted if desired, though I prefer the use of both.

Having thus described my invention and the manner of employing the samewhat I desire to secure by' Letters Patent is:

1. In feed-valves for steam boilers, a vertical valve casing having anoutlet port and one or more inlet ports; a frusto-conical cut-ofi" valverotatably mounted in the said casing, and having a central longitudinalopening, and provided with ports in register with the said valve casingports; a checkvalve loosely seated in the said longitudinal openingbelow the said outlet ports; means for securing the cutoif valve againstvertical displacement; means for rotating the cut-ofi' valve; removablemeans for closing the upperend of the said longitudinal opening; and atry-cock mounted in the valve casing in cotiperative relation with thecut-- off valve, as described.

2. A steam-boilerfeed-valve consisting of a vertical valve casing havingoutlet and inlet ports; a try-valve fixed in a suitable opening in thecasing and in cooperative relation with the cut-off valve; a cut-offvalve rotatively mounted in the casing and having a longitudinal centralopening, the upper portion of which is of enlarged diameter andpartially screw-threaded, and provided with .inlet and outlet ports inregister with the casing ports respectively; an annular valve seat atthe lower end of the enlarged portion of the said longitudinal opening;a checkvalve loosely seated on the said valve seat; a screw-plugremovably mounted in the said screw-threaded portion of the saidlongitudinal opening for limiting the upward movement of thecheck-valve; and means for securing the cut-ofi valve on its seat.

3. A valve casing having inlet and outlet ports; a conical cut-oft valveloosely seated in the casing", the said Valve having a central means forfirmly securing the cut-off valve longitudinal opening inconinmnication' with upon its seat. the mlvc-casing ports; an annularvalve Signed by me at Garrett, Dckalb county, seat substantially midwayof the said open- State of Indiana, this 7th day of October,

5 ing; a check-valve mounted on the said 1908.

valve seat; removable means mounted in the upper end of the said openingfor limiting I the vertical play of the check-valve; a tryt Witnesses:

LEO D. MAGER.

cock mounted in the valve casing in coopcr- J. D. BRINKERHOFF, 10 atlvei'elationwlth the cut-off valve; and H. W. MOUNTZ.

